食道類基底細胞癌の1例

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  • A CASE REPORT OF BASALOID-SQUAMOUS CARCINOMA OF THE ESOPHAGUS

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A 62-year-old man with appetite and body weight loss undergoing esophagography was found to have an uneven filling defect 8 cm long at Lt to Ae of the esophagus. Endoscopic examination showed an uneven nodulaous, protruding, infiltrative tumor 37 cm from the incisors to the esophagogastric junction. Biopsy of the tumor showed basaloid-squamous carcinoma, necessitating right transthoracic subtotal esophagectomy with dissection of mediastinal and abdominal lymph nodes. The resected specimen showed an 8×6.5×3 cm combined type 1p with a type 3 lesion. The histopathological diagnosis was esophageal basaloid-squamous carcinoma with a stage grouping of pT3, pN1, pIM0, ly1, v0, pStage 3. Basaloid carcinoma of the esophagus is rare and thought to have greater malignant potential than squamous cell carcinoma. We review 41 cases of advanced basaloid carcinoma, including ours, reported in the Japanese literature.

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